Disc diffuser



FIG. 1 is a perspective top view showing my new design;

FIG. 2 is a perspective bottom view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a front side view thereof;

FIG. 6 is a back side view thereof;

FIG. 7 is a left side view thereof; and,

FIG. 8 is a right side view thereof.

The ornamental design for a disc diffuser, as shown and described.